I somewhat disagree but then I somewhat disagree with many things.
Of course it depends on the type of BOL and the type of disaster etc. that one is bugging out from. The title of this thread: "Which is best BOL. American Redoubt or Ozarks?" means what is the best Bug Out location and not the best place to live. Live as in how people have lived throughout history.
Maybe Iowa or whatever state has the Best farm land is the Best BOL and likely right now, pre-SHTF / pre-apocalypse is the Best place to live or even bug out - evacuate to.
In my opinion which I have developed after 35 plus years of study and creating a good BOL / soon to be permanent homestead, I think that there are many more places for a great BOL west of Missouri even west of where the Great Plains meets the Rocky Mountains.
The vast deserts and very rugged mountains make it easier to find a good BOL and a good BOL should have good water, wood and wildlife. Even some ground to have a garden and build what one needs such as a cabin, sheds and possibly a bunker / underground storage - storm shelter.
Plus a great BOL or even permanent homestead / retreat and cabin site is as far from cities as possible. Especially the potential death traps of every city with a million plus population.
For example, the nearest big city = Denver is about 250 miles to the SW of my mountain retreat / BOL / homestead and I really doubt very many if any of them will make it even to the Wyoming state line, which might be closed if there is a really bad SHTF etc.
As a few have posted even in this thread is consider the huge population density differences between eastern states and most of the western states. Mainly the huge area of MT, Idaho and WY.
This is a bing link and anyone can search using the words 'rawles American redoubt' but here is the link which should tell even more than what most would even want to know about the great American Redoubt >>>
https://www.bing.com/search?FORM=INCOH2&PC=IC06&PTAG=ICO-ff631a0d5f65e6c0&q=rawles+american+redoubt
This is a very necessary link from Rawles explaining his idea of the American Redoubt. >
https://survivalblog.com/redoubt/
That survivalblog of Rawles was posted in March 2011. I was born in northern CO in 1958 and bought my mountain land in July 1987 in southern WY the central but very southern part of the American Redoubt.
But anyone can list more. If / when I get a Lot more time then maybe I will make a list of differences but the links I just gave should explain probably better than I have...